Every Android user is waiting for the Google I/O to be held next week in San Francisco to see the features of Android's new version. Even before the official announcement of the firmware's features could be made, we learned something the new OS will be offering.

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Previously, it was expected Google I/O would be the launch event of Android Jelly Bean's successor, Android 5.0 Key Lime Pie, but recently the arrival of Android 5.0 Key Lime Pie was questioned. Now, it looks almost certain that Google will showcase another version of Jelly Bean, Android 4.3 Jelly Bean, at the event that opens May 15.

Android 4.3 Jelly Bean's features have not been either disclosed or discussed so far by Google officially, but HTC gave a subtle hint about two features that will be revealed with the launch of Android 4.3 Jelly Bean.

According to an SFAndroid report, the publication will interview three HTC developers on May 16 at the Google I/O. The discussion will include Bluetooth Low Energy and Open GL ES 3.0.

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The trio will consist of HTC's developer evangelists Dario Laverde and Lance Nanek and software engineer David Wu.

"Bluetooth Low Energy (BLE) on Android has arrived. Dario Laverde will provide an overview of the BLE specification and take us through HTC's APIs and hands-on demos with various devices, heart rate monitors, key finders, and multi-sensor kits (temperature, pressure, humidity, accelerometer). You'll walk away ready with the code to kick start your BLE ideas.

Next, Lance Nanek will tell us about Open GL ES 3.0, the new pipeline, updated shading language, enhanced texturing.... but more importantly, blow us away with some amazing demos!" the report stated.

Bluetooth Low Energy technology is just like Bluetooth SMART that supports always-on devices. However, the technology has not yet become an official part of Android OS, whereas, the Open GL ES 3.0 is the new graphic specification that supports high-end processors.